ClueLuma

General sensible heat transfer calculator

Applies to temperature change without phase change.

Units
q=m˙×Cp×ΔTq = \dot{m} \times \mathrm{Cp} \times \Delta T

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

lb/h
Btu/(lb·°F)
°F
Btu/h

Worked example

Given

  • m˙\dot{m} = 5,000 lb/h
  • Cp\mathrm{Cp} = 0.24 Btu/(lb·°F)
  • ΔT\Delta T = 20 °F
q=5000×0.24×20=24,000q = 5000 \times 0.24 \times 20 = 24{,}000

Symbols and units

SymbolMeaningUnit
qqsensible heat-transfer rateBtu/h
m˙\dot{m}mass flow ratelb/h
Cp\mathrm{Cp}specific heatBtu/(lb·°F)
ΔT\Delta Ttemperature change°F

Related calculators

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.